One-step synthesis of well-structured NiS–Ni2P2S6 nanosheets on nickel foam for efficient overall water splitting

摘要: One-step fabrication of efficient and self-supported electrocatalysts as bifunctional electrodes for water splitting is prime importance but still challenging. Herein, we demonstrated a facile approach the in situ growth NiS–Ni2P2S6 nanosheets on nickel foam (NF) (NiS–Ni2P2S6/NF) via one-step calcination at low temperature. Benefitting from fast electron mass transfer unique 3D structure well synergistic effect between NiS Ni2P2S6, optimized NiS–Ni2P2S6/NF exhibits superior OER HER electrocatalytic activity 1.0 M KOH with small overpotentials 220 mV 140 to achieve current density 10 mA cm−2, respectively. Moreover, as-prepared could be used both cathode anode two-electrode cell, which can deliver cm−2 under cell voltage 1.64 V satisfactory stability, implying its promising prospects practical scale-up applications.